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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
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[QUOTE=911st;4652354] The way to really do this would be to put EGT's at each primary exhaust tube. Some racers have done this on turbos, MFI, and carbs. Then if you have a cylinder that is running hotter than the others, it can be balanced out.QUOTE]

This approach might have merrit.

I can envision getting a 6 channel digital temperature meter with thermocouple wire inserted into the air pump injection ports of each cylinder. Measure the individual cylinder exhaust gas temperture in that fashion and tweak the fuel head to get even EGT's. Cross-check this against your WBO2 sensor in the exhaust feeding your AFR gauge and a person should be able to precisely balance the fuel flow to each cylinder. Get your EGT's balanced at idle and from there make overall system adjustments with your control pressures to center the AFR where you want it. A full system tuning approach.

All theory, of course!
Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 05-08-2009, 03:53 PM
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